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You are here: Home / Movements / Valjoux 77 ECO

Valjoux 77 ECO

Last Update: June 24, 2019

Brand:Valjoux
Family:
Unknown
Height:6.00 mm
Jewels:17
Reserve:39 hours
Frequency:18,000 A/h
Winding:Hand winding
Diameter:29.50 mm (13 ligne)
  Complications:2-Button, 7-Column Chronograph, Chronograph, Column Wheel Chronograph
Hands:30 Minute Chronograph Hand at 3:00, Central 60 Second Chronograph Hand, Central Hour Hand, Central Minute Hand, Small Seconds Hand at 9:00
Distinguishing Technical Characteristics
Hand-Winding
Clockwise Balance Cock
Indexed Regulator
7-Column Chronograph
Production: 1946 – 1950
1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s

Valjoux Cal. 77 ECO is a column wheel chronograph movement. Unusually for Valjoux, it has seven columns in the wheel used to control the chronograph function and also uses Heuer’s oscillating pinion engagement design. It is a two-pusher movement with a 30 minute chronograph register. Cal. 77 was produced from 1946 through about 1950. The Valjoux 92 was a descendent of Cal. 77.

Valjoux designed the unusual Cal. 77 with two goals: It implemented the oscillating pinion for use by Heuer, and it replaced many complex milled components with springs to reduce cost.

Images are taken from official publications and are used here for commentary and educational purposes. Copyright is held by the original owner as noted.

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